1. Expected speed is the speed delivered to the home gateway or All-Fi hub, which is then shared out to all the devices connected to the gateway.
2. The maximum speed on a single connected device is 4.7Gbps. In order to achieve that speed, you must have an appropriate wired connection between the 5Gb port of the Wi-Fi gateway and a device capable of receiving the maximum speed. In other configurations, the speed will be distributed to all the connected devices using wired or Wi-Fi connections to the gateway.
3. In no case does AT&T guarantee particular minimum speeds for AT&T Internet Air services. Speeds available are affected by many different factors that can impact wireless network performance, including your proximity to a cell site, the capacity of the cell site, the technology at the cell site, the number of other users connected to the same cell site and the services they are using, the surrounding terrain, use inside a building or a moving vehicle, radio frequency interference, your data plan, the capabilities of your device or gateway, applicable network management practices, and the applications you use.